3 Red Lights, Tinley Park, IL- Cherry Hills Subdivision Three red lights were seen in the sky moving slowly from the south to the north and began traveling east until they could no longer be seen. They stayed at a pretty constant distance from each other and as they moved across they appeared to change formation from a scattered line to a triangle. There appeared to be no noise coming from the lights and no sudden movements. Initally the lights appeared very bright (as bright as the red lights from plane towers), but as they traveled further from were they were spotted, they became less brillant until they seemed to disappear from sight (from my perception they traveled to far for the naked eye to see from where I was located). Airplanes flew in the vasinity.